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out . It norma lly fails by clean up of the ga s.
Thi s caus es the tube to be more difficult to
break down. Thi s is evidenced by failure of the
tube to break down even with the milli-amp ere
me ter current as low as 0.3.
The best method of checking the tubes is
to replace them one at a time by new tubes or
better still, by tubes which operate satisfactor-
Apparatus
Phototube . . . . . • . . . • . . • • • • . • . • . . . . • . . . •
Thyratron Tube . • • , . . • • • • . . • • • . . • . . • . • . •
Amplifier Tube . . . . • • . • • • • • . • • . . . . . . . . •
Contactor with Coil, 50-60 Cycles . • . • •
Contactor Coil, 50-60 Cycles • . • . . . . . . .
Transformer, l15/230 Vo lts,50-60 Cycles.
Transformer, 220/440 Volts,50-60 Cycles .
Socket for RJ -571 Tube . • • . • • . . • . . . . . • .
Socket for SK -60 or KU-636 Tube . . • • . . .
Tube Clamp . . . . . • . • • • • • . • • • • • . . . • . • . . . .
Rectox (27-28) ...................... . .
Rectox (9- 16-17 ) . . . • . • • • . • . • • • . • . • . . • •
Mill1-Amp ere Meter • • . • . • • • . • • . . • . . . . . .
Westinghouse Type RM-l Photo -Tro ller
Replacement Parts
Style
SK-60
KU-636
RJ -571
1 008 540
1 008 52 0
966 515
971 458
831 726
766 732
968 211
966 513
971 170
818 504
lOlA l fA OIA KNOCK- OUTS, 2 ON EACH SID£ Or elise
Ii- .J ON Top OF ellst;
t Or KNOCK-D1J7S
1 -jJi---J I
1--- -- "6 --=---:.
k 01/1. Ii {)fA ,
?/
\ v"-
t"-
$ I
- I '4 fo--
.. ..j
..
":... ....
tl ..,
I.S>
I
ily 1n an identical Pho to-Troller.
should always be kept on hand .
Spare tubes
The RJ -571 amplifier tube may fail due
to burnout of the filament or by dec reased overall
amplification fac tor, caused either by decreased
emission or by exc essive grid current.
The tube should be replaced if the test results
outlined in paragraph 2 cannot be obtained .
maratus
Potentiometer (0.5 MEG ) • • • . • . • . . • • • . • •
Capacitor 0.01 MF • . ' . . . .. . . . . . . . . .. . . . .
Capacitor, Carnell-Dubilier Type • • • • . .
!'tesistor 0.5 MEG • • • • • • . • • • • . . • • . • . • . •
Resistor 10 MEG . • . • • • • • . • • . . . . . • • • • .
Resistor 0.25 MEG • • . • • • . • • • • . . • • • . . • • .
Pushbutton "Start " • . • • • • • • • • • . • . • . • • . .
Pushbutton "Stop" • . • • . . • . • • • . . • • . • . • • •
Knob and Pointer . • • • . . • • • • • • • • . . • • . • • •
Switch • • . . . . . . • . . . . • • • • . . • • • • . . • . . . • . •
KU -636 Grid Clip . • • • • . . • • . • • . . • . . • . • . •
RJ -571 Grid Clip • . . • • • • • . • • • . . • • •. • . • • •
4iJ
.. ...,
'"
____ ____ -L
Lt:N$
Fig. 6 - Out line Drawing for Photo-Troller without Focusing Tube and
with long Focusing Tube
5
•
Style
966 591
1 014 540
EH-9808 SL
860 878
846 670
861 041
511 813
588 353
845 309
919 068
829 334
799 907
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